Home / 103,839,728.95-143,342,948.80-64,700,843.44

Finding the Fourth Proportional to 103,839,728.95, 143,342,948.80 and 64,700,843.44

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Solution

The fourth proportional to 103,839,728.95, 143,342,948.80 and 64,700,843.44 is: 89,314,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,839,728.95 : 143,342,948.80 = 64,700,843.44 : x
  2. Step 2: Convert to fraction form
    103,839,728.95/143,342,948.80 = 64,700,843.44/x
  3. Step 3: Cross multiply
    103,839,728.95x = 143,342,948.80 × 64,700,843.44
  4. Step 4: Simplify right side
    103,839,728.95x = 9,274,409,687,820,022
  5. Step 5: Solve for x
    x = 9,274,409,687,820,022/103,839,728.95
  6. Step 6: Final answer
    x = 89,314,656.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.